Thanks for quick reply .I want to know Message based chat application we are going to develop. that time how it will help for me. assume that . I have DB in list of user. whenever the user login , the same name I want to create Topic JNDI for that user. and provide publish the message and recive the message.When ever the user log out The Topic JNDI will delete automatically . This kind of scenario possible for JBOSS.please provide some more information about my question.